Home / 136,905.80-205,389.30-48,162.20

Finding the Fourth Proportional to 136,905.80, 205,389.30 and 48,162.20

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Solution

The fourth proportional to 136,905.80, 205,389.30 and 48,162.20 is: 72,254.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,905.80 : 205,389.30 = 48,162.20 : x
  2. Step 2: Convert to fraction form
    136,905.80/205,389.30 = 48,162.20/x
  3. Step 3: Cross multiply
    136,905.80x = 205,389.30 × 48,162.20
  4. Step 4: Simplify right side
    136,905.80x = 9,892,000,544.46
  5. Step 5: Solve for x
    x = 9,892,000,544.46/136,905.80
  6. Step 6: Final answer
    x = 72,254.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.